Kojima Peninsula, Peninsula in Okayama Prefecture, Japan.
Kojima Peninsula juts into the Seto Inland Sea as a coastal region shaped by water and ports. The landscape merges industrial activity with natural surroundings, with denim workshops forming the core of daily life.
This area was originally separated from the mainland as an island but became connected through land reclamation starting in the 1600s. The transformation enabled its later development as an industrial zone focused on textile production.
The peninsula serves as the birthplace of Japanese denim manufacturing, where local craftspeople have perfected the art of jean-making over generations. Walking through the workshops and shops, you can see how tradition shapes the daily work here.
The peninsula is reachable by train and bus from Okayama, with bike rentals available to move around freely. Plan a full day to explore the denim shops and workshops at a comfortable pace.
Visitors can observe how indigo dyes are still made using time-honored methods, giving the place its distinctive character. This craft tradition shapes how the entire area looks and feels to those who walk through it.
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